Frontiers in Chemistry, 2020 Disulfide bridges establish a fundamental element in the molecular architecture of proteins and peptides which are involved e.g., in basic biological processes or acting as toxins. NMR spectroscopy is one method to characterize the structure of bioactive
Christoph Wiedemann +3 more
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Role of Dual Energy CT Scan in Evaluation of the Chemical Composition of Renal Stones [PDF]
Journal of Clinical and Diagnostic Research, 2020 Introduction: For appropriate management of renal stone knowing its composition is important. Laboratory chemical analysis of the stones involves sophisticated techniques.
Sachin Khanduri +7 more
doaj +1 more source
Uptake of L-cystine via an ABC transporter contributes defense of oxidative stress in the L-cystine export-dependent manner in Escherichia coli. [PDF]
PLoS ONE, 2015 Intracellular thiols like L-cystine and L-cystine play a critical role in the regulation of cellular processes. Here we show that Escherichia coli has two L-cystine transporters, the symporter YdjN and the ATP-binding cassette importer FliY-YecSC.
Iwao Ohtsu +7 more
doaj +1 more source
Urolithiasis in dogs: Evaluation of trends in urolith composition and risk factors (2006‐2018)
Journal of Veterinary Internal Medicine, 2021 Background Urolithiasis is a common and often recurrent problem in dogs. Objective To evaluate trends in urolith composition in dogs and to assess risk factors for urolithiasis, including age, breed, sex, neuter status, urolith location, and bacterial ...
Lucy Kopecny +3 more
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Intracellular Distribution of Cystine in Cystine-Loaded Proximal Tubules [PDF]
Pediatric Research, 1994 Cellular cystine loading with cystine dimethyl ester has been shown to inhibit transport in proximal convoluted tubules perfused in vitro and decrease the rate of oxygen consumption in suspensions of proximal tubules. The present study was designed to examine the intracellular distribution of cystine in this model of the Fanconi syndrome of cystinosis ...
Michel Baum +2 more
openaire +3 more sources
Augmented Cystine–Glutamate Exchange by Pituitary Adenylate Cyclase-activating Polypeptide Signaling via the VPAC1 Receptor [PDF]
, 2014 In the central nervous system, cystine import in exchange for glutamate through system xc- is critical for the production of the antioxidant glutathione by astrocytes, as well as the maintenance of extracellular glutamate. Therefore, regulation of system
Arimura +74 more
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A mTORC1-mediated cyst(e)ine sensing mechanism governing GPX4 synthesis and ferroptosis
Molecular & Cellular Oncology, 2021 Ferroptosis is a cell death mechanism triggered by lipid peroxidation. Our recent study linked cyst(e)ine availability with glutathione peroxidase 4 (GPX4) protein synthesis and ferroptosis mitigation via a Rag-mechanistic target of rapamycin complex 1 ...
Yuelong Yan, Guang Lei, Boyi Gan
doaj +1 more source
Journal of Pharmaceutical Analysis, 2021 Cystine is the primary source material for the synthesis of glutathione. However, the pharmacokinetics and tissue distribution of cystine are largely unknown.
Shuning Li +6 more
doaj +1 more source
Insulin-like Growth Factor 1 and Transforming Growth Factor-β Stimulate Cystine/Glutamate Exchange Activity in Dental Pulp Cells [PDF]
, 2011 Introduction The growth factors insulin-like growth factor (IGF-1) and transforming growth factor-β (TGF-β) are protective to dental pulp cells in culture against the toxicity of the composite materials Durafill VS and Flow Line (Henry Schein Inc, New ...
Alyssa Furey +39 more
core +2 more sources
Urinary felinine excretion in intact male cats is increased by dietary cystine [PDF]
, 2008 Felinine is a branched-chain sulfur amino acid present in the urine of certain Felidae, including domestic cats. The objective of the present study was to determine if additional cystine and/or dietary N would increase felinine and N-acetylfelinine ...
Hendriks, W.H. +4 more
core +2 more sources